Machine for mixing concrete and the like.



y c. E. Mmmm; MACHINE FOR MIXING CONCRETE AND THE LIKE.

' APPLICATION FILED MAY 20,1909.

{Patente-d. Jan, 2, 92.

Uf E. BATHRIGK. MACHINE FOR MIXING CONCRETE ANDv THE LIKE.. APPLIQATION FILED MAY 20,1909. L01 3, 1 09. Patented Jan. 2,1912.

G. E. TRIG'K. wa-@Emma mmm CONCRETE AND THE LIKE. APLGTION FILED MAY 20,'909. #u Patented Jan 2, 191% 4 sums-SHEET a.

Zizof o?? @hada f Mmmm Foa @Mmmm-z ma .THE LIKE. Hummm FILED in 29 190s.

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a j UQ -UNITED STATES PATENT oFFIcE.

CHARLES E. IBATHRICK, 4or CHICAGO, ILLINOIS, ASSI-Givors' To FREDERICK c. AUSTIN,

or cHI'cAGo, ILLINOIS.

MACHINE ron MIxINe QQNGRETE AND' 'rH-EILIKE.

To all 'whomz't may concern: I

Be it known that I, CHARLES E.' 'BATH- RICK, a citizen ofthe United States, residing at Chicago, in the county of Cook and State of Illinois, have invented-certain new and useful Improvements in Machines for Mixing. Concrete andthe Like, of which the following is a specification.

My invention relates to mixing-machines or mixers involving a rotary mixing drum or drum-like mixing receptacle 'provided lwith an end discharge opening concentric being or substantially concentric with the axis of rotation of the mixing drum, the mixed material,. such as concrete, being discharged from the revolving mixing drum by a chute extending therein, andthejdrum being provided with internally arranged means for elevating the material therein and directing or discharging it from a suitably elevated,

point or points into the portion of'fthe chute which is in the mixing chamber. f

' .In my application 'serially numbered 454,665, and filed September 24, 1908, I have provided at what may be farther away from the sides of the chamber and thus termedthe delivery1 end of th`e mixing drum, a rotary chute support arranged for rotative action aboutfn axis whichv is-longitudinal las to the; drum and desirably coincident or subst'ntially coincident with the axis of rotation of the mixing drum, and to this' rotary chute support I have attached a chute which is held oblique to the axis of rotation of its rotary support, the result that the support can be turned to bring the'chute right side up and in a downwardly and outwardly inclined position, so as to receive material carried .up and dropped within the drum and discharge the same by way -of 'the -discharging opening of the. drum. lVith such construction, the chute can be shifted ormoved out of said active position and moved into an inactive position by giving to the chute support a partial-'turn about its axis, a quarter turn thereof `serving to-laterally turn the chute aboutthe axis of rotation of the drum toan a'gonal position within the drum chamber,

the `chute in such position being edge up,

Specification of Letters Patent.

portion above the`- other longitudinal edge portion'.

The objec s of the present ln'veriltion are to avoid the diagonal dispositiorr` of the chute when it is in an inactive position and to cause itI when in such inactive position to extend longitudinally along .the central ing material, and to secure greater clearance bet-ween the chute and side wallsof the.

Pat-enferman. 2,1912. -Application filed May 20, 1909. Serial No. 497,149. 4

that is to say-having one longitudinal edge 6'0 l zone or portion of the mixing drum chamv ber so as to be more out of the way of fall sition. To the attainment of these ends I .l su port the chute for combined laterallyvv rotative and end tilting motion, whereby the chute can be laterally turned to place it right` side up' for receivingmaterial, and

in alternation therewith 'laterally turned from such position toward an inverted con- .dition so asto place 1t 1n an inactive -position, and also whereby the chute can be tilted so as to' cause it tov incline downwardly and outwardly when right side up, and in alternation therewith` tilted so as to place it parallel or substantially parallel with the axis of rotation of the drum or t e rotary support to which it ishinged..

In the accompanying dra-wings: *igure 1 is a longitudinal central section o a vertical plane -through the mixing machine or mixer, as it is hereinafter termed, the section being taken so as to show in side elevation the main portions of the means employed for turning and tilting the collectingand discharging trough-like chute, the

latter being in longitudinal section with.

t-he exception that aportion '0f its near side at one end is left in elevation so asy to showthe near fork arm pivoted thereto.v Fig. 2 is a frontend elevation of the mixer with its members in the position shown in Fig. 1. Fig. 3 is a longitudinal central section on a vertical plane through 'a portion of the mixer, the plane 'being taken through the chute operating means shown in side elevation in Fig. 1. Fig., 4 is a section on line 4-4 in Fig. 3. Fig. 5 is a section similar. to thatv shown in Fig. 3, except that the chute is shown in inoperative position. Fig. 6 is a section on line 6 6 in Fig. 5.. Fig. 7 vis'a'section online 7|7 in Flg. 5. Fig.v

. which provided with any suitable yor de atop' plan' 'view-of the chute. 9`fis a. section taken transversely through .the

chute on a line between its ends.

A indicates a rotary mixing drum or relceptacle supported upon anti-friction rolls 1 and 2, 'umlcrstood'to be arranged in airs respectively at opposite ends of the rum sired construction of end bearings 4 and, 5 arranged to engage uponthese anti-friction supporting rolls. The mixing drumshown is of the cube type having receiving. and discharge' openings respectively at diagonally opposite corners, it being understood' however that l do net coninc my invention vto this particular type of mixing drum or receptacle, and that l may employ any other knovvn or suitable type consistent with 4my improvements in means tor discharging atvvill, all or a Aportion of the contents, of a non-tilt1ng rotary mixing drum 'during-its grotation.

The rotary mixing receptacle is internally provided With-means' tort-airing and carryf ing up mixed material to a. point suitable for dropping the material upon a troughlike chute B when suclrchute is inl position for receiving and discharging. This chute is arranged Withinfthe mixing drum and supported for combined end-tilting and side or lateral turning or vrotary action, thereby being capable 'of a compound action permit?,

.ing it to be 'moved icrom` an' active to an inactive position, and converselyV for permitting a reversal ot' such movement. To

such end the chute is hinged to a rotary support which permits end tilt. on the, part of the chute, 'whereby the latter can be'moved linto receiving and discharging position, as

shown in the first tour ,igures, and Vwhich also permits the chute to be moved into an inactive position, as shown in' Figs. 5,' 6,

and 7. 'Vhen the chute is in an active position, it inclines downwardly and forwardly and is right side up so as toreceive material which 1s 'carried up and dropped Wlthm the mixing chamber, and to then dischargev such collected material ,downwardly to andout through the discharge opening of the rotary mixing drum. As a means'for thus hinging the chute, a rotary shaft or axle 3.

(see particularly Fig. 3)"is provided With a forked end. C which straddles theouter end portion of thechnte, the opposite sides of this portion ofthe chute being respectively pivoted to one and the-other of the two arms lof the forked or yoke-shaped -member C which is rigid with and which therefore practically forms an`end portion of the axle 3. The -rotary shaft or axle 3 is arranged to' revolve about an axis which broadly considered is a longitudinal axis relative tothe rotary mixing drum and which is preferably coincident or substantially coincident with the about which the drum revolves, the

sidered' therefore, the chute iS forithe pur-- pose of end tilt pivoted or hinged to arotary support arranged to re'volvcabout an axis coincident with a line .extending longi-l` tudinally through the drum 'and As a means fortilting t-he chute, D` indi-4I Y*desirability of this feature being herein-afterv.- 'more particularly explained. Broadly conto a vibratory member D.. The member D has its inner end portion formed as a yoke 'or bail, the arm portions 6 o-Which straddle the chute and are pivoted to the sides of the latter as at 63,63*. These pivotal connections' 6a,'6, are toward the rear or inner end or" the chute, and the pivotal connections 7, 7, between thearms 7, .of the fork C an'd the chute; are toward the fern-'ard or outer end of the lat-ter.- When .the chute is in active position, as in. Figs. 1.- and'3, it is main- 'tained in inclinedv position by the member D. .As a` means for controlling this chute tilting memberD, the vibratory member D" extends through the rotary fork C and is attached thereto-by a tr'ansversepivot S, havingits end portions forming ournals which are suitably mounted in Athe rotary chute supporting member C, as best shown in Fig.

5. The'v'ibratorymember Dv is formed with arms 9 and 10 respectively extending in op; posite 'directions from the axis of the pivot' S. The outer end 'of 4the chute tilting ineinberD is pivoted to -the-arm 9 of the=vibra tory member or lever D', and to' the other arm 10 of said vibratory member or` lever is pivotally attached the inner end of a connecting rod E. The outer `end ofthis con necting rod E is pivoted to an armll on or forming part of a vibratory rack 'or gear segment F. This vibratory rack .or gear. segment F isi attached by a pivot 12 (see Fig. 5) to an end portion 13 of a hub or sleeve G which is'in turn secured to :the

outer end portion. of therotary shaft or axle 3, its secnrcment thereto being for example attained by means oty any suitable.

key or spline 14. The axis or' pivot 12' is'a't right angles-to the axis of the 4axle 3, and

said pivot 12 is securedto theslecve or hub portion 13 in any suitable way, for example,

by pin 15.v The bearings 16. and 1 7 -for the' axle 3, are conveniently provided by a bracket -H ,secured to a stationary frame ,portion I outside of and opposite the discharge endof the nnxmg drum. and the bearing 1f( thus referred to is provided with ahevel gear 18, whichV is keyed or splmed on said bearing so as'to remain' stationary.

The rack-or gear F engages thebcvel gear 18, -and the outer cndportion forming the 'major length of rod E is'oblique'relatively active position, and also-when subjectcdto the reverseA of such movement.

lilith further reference'to the details, the chute being hinged to the rotary supporting member C by pivotal connections 7a, is adapted to tilt about a Vtransverse axis ex`.

vtending through such pivots or pivotal connections 7a, -so that when the member C is turned 'aboutan axls colncident or substantially coincident with the axls of rotation of the vmixing drum, the transverse axis upon which the chute is arranged to tilt is synchrono'usly turned or 'revolved about the axis of rotation of the' mixing drum, and

during such action the chute is .tilted byy meanswhich also permits it to.revolve about A-a tilting axis extending from end to end `of the chute. 'The mixing drum is shown proyided'with a feedopening and alfeed lspout N, and these may be made without reference to the lchute which can be and preferably is entirely supported at, the `discharge end of l t-he drum, and in this way the rear or inner end of the chute is free for swing andtilt within the mixing chamber.'

1tis understood that. the gear device for operating the chute vtilting member or pitman D is relatively timed to cause the chute to tilt from the position shown in Figs. l and 3, to the position shown in Figs. 5, 6 and 7, when the handle K-is given a quarter turn, as hereinbefore described, and that if it is desired to augment the extent of lateral turn or rotative action, in order to bring it from'an active into an inactive position, and the converse thereof, the gear dev'ice should be timed accordingly.

Vhat I claim as my invention is:

l. A rotary mixing drum provided with an end dischargeopening; -a chute for receiving material within themixing drum and for discharging such material therefrom by lway of the end discharge opening 'ceiving position,

or passage; means for elevating material within the mixing drum and vdischarging the same intqthe chute; a rotary device for laterally turning the chute into and out of rethe. chute being hinged to said turning device for end tilt in direction and to an extent to incline the chute downwardly and outwardly when it is turned mto receiving position, and conversely to swing 'the chute toward a positionparallel witlrits axis coincident with the axisof the turnlng device .when the chute is turned by s'aid turnin@ device'into an inactive position.

2. The combination with a vrotary mixing drum, having an axial opening in-one. end,

a discharg'fev chute extending Within .said opening, a rotary member vWhereon vsaid chute is pivoted and means for tiltlng said chute into and out of operative, position as.

said member andchute are rotated, substantially as described..

3. A rotarymixing drum,

ber;'a vibratory rack or .the -rotary support e eresie chute extending Within 'the'.rotary mixing drum; a rotary member'to which the chute is hinged for end tilt, said member being rotative about an-axiswhichis longitudinal as to the rotary drum;.mean s .for tilting the chute synchronously with its rotary action .eifectedby rotation of the said rotary member toi/vhich it is hinged for end tilt; yand means for raising material Within the rotaryv drum and discharging the same into the chute when .the latter is in active position.

4. A rotary mixing drum; a discharging chute extending Within the rotary mixing drum; @rotary member-for laterally turning the chute, the latter being hinged to said` rotary inember for independent end tilt; and

power transmitting connection. between theV chute and said rotary member for tilting the, chute synchronously with its lateral rotative act-ion caused by rotative actionon the part of its saidl turning member, and means for' and also pi'votally supported upon Qthe forked member to which the chute is pivoted means for vibrating the said member which is pivoted'upon the forkedv member and attached to thepitman, and meanysfor elevating anddischarging material Within the mixing drum.

(3. Av rotary mixing drum; a chute extending within the mixing-drum and supported for laterally rotative and end tilting action;

a rotary member to which the chute is hinged for end tilt, the chute being laterally turned by the rotative action of said'memgear pivotally con` nected with the rotative member; a fixed gear with which the vibratory rack vor gear engages,j and Apower transmitting connection between the vibratory rack or gear and the' l chute for tilting the latter. v

7. A, rotary mixing drum having an end downwardly discharging material Within the mixing drum; a rotary member consisting of a spindle provided at one end portion -With a vibratory rack or gear and pro 'vided at its opposite end portion with a forked member to which the chute isghing'ed, a stationary gear engaged by the vibratory gear; a pitman for tilting the chute, a v1- bratory member for operating the pitman,`

said vibratory member being-- pivoted upon to vvhic the chute is hinged and a connecting rodbetween the v1- bratory 'm mberfon said support andthe viwbratory rack or'gear.: y

'discharge opening; means for raising and.

v8. The-combination with .a rotar mixinff Said su on and drum and means fol' rodrum having` a discharge opening at one' tai/ingl said member and said ehufe and for lo end, a discharge chute extending Within said tilting said chute, substvnlcially as desci'ibed opening aZ rotatable sup-port havinfr an axis y r v rp 'substaiiially coincident with the axkias of Said -A CDTLRLES E' BAf-HRCK' drum, said chute being pivoted to said sujp- Viitnesses:

port to swing about an axis substantially at @TULLE C.. FRELBERG;

right `angles with the coincident a'Xis and CATHERINE CRAVEB. 

